package com.ruoyi.common.utils.changeUtils;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Calendar;

public class YNDateUtlis {
    private static int year;

    private static int month;

    private static int day;

    private static boolean leap;

    final static String chineseNumber[] = {"01", "02", "03", "04", "05", "06", "07",

            "08", "09", "10", "11", "12"};

    static SimpleDateFormat chineseDateFormat = new SimpleDateFormat("yyyy-MM-dd");

    final static long[] lunarInfo = new long[]{0x04bd8, 0x04ae0, 0x0a570,

            0x054d5, 0x0d260, 0x0d950, 0x16554, 0x056a0, 0x09ad0, 0x055d2,

            0x04ae0, 0x0a5b6, 0x0a4d0, 0x0d250, 0x1d255, 0x0b540, 0x0d6a0,

            0x0ada2, 0x095b0, 0x14977, 0x04970, 0x0a4b0, 0x0b4b5, 0x06a50,

            0x06d40, 0x1ab54, 0x02b60, 0x09570, 0x052f2, 0x04970, 0x06566,

            0x0d4a0, 0x0ea50, 0x06e95, 0x05ad0, 0x02b60, 0x186e3, 0x092e0,

            0x1c8d7, 0x0c950, 0x0d4a0, 0x1d8a6, 0x0b550, 0x056a0, 0x1a5b4,

            0x025d0, 0x092d0, 0x0d2b2, 0x0a950, 0x0b557, 0x06ca0, 0x0b550,

            0x15355, 0x04da0, 0x0a5d0, 0x14573, 0x052d0, 0x0a9a8, 0x0e950,

            0x06aa0, 0x0aea6, 0x0ab50, 0x04b60, 0x0aae4, 0x0a570, 0x05260,

            0x0f263, 0x0d950, 0x05b57, 0x056a0, 0x096d0, 0x04dd5, 0x04ad0,

            0x0a4d0, 0x0d4d4, 0x0d250, 0x0d558, 0x0b540, 0x0b5a0, 0x195a6,

            0x095b0, 0x049b0, 0x0a974, 0x0a4b0, 0x0b27a, 0x06a50, 0x06d40,

            0x0af46, 0x0ab60, 0x09570, 0x04af5, 0x04970, 0x064b0, 0x074a3,

            0x0ea50, 0x06b58, 0x055c0, 0x0ab60, 0x096d5, 0x092e0, 0x0c960,

            0x0d954, 0x0d4a0, 0x0da50, 0x07552, 0x056a0, 0x0abb7, 0x025d0,

            0x092d0, 0x0cab5, 0x0a950, 0x0b4a0, 0x0baa4, 0x0ad50, 0x055d9,

            0x04ba0, 0x0a5b0, 0x15176, 0x052b0, 0x0a930, 0x07954, 0x06aa0,

            0x0ad50, 0x05b52, 0x04b60, 0x0a6e6, 0x0a4e0, 0x0d260, 0x0ea65,

            0x0d530, 0x05aa0, 0x076a3, 0x096d0, 0x04bd7, 0x04ad0, 0x0a4d0,

            0x1d0b6, 0x0d250, 0x0d520, 0x0dd45, 0x0b5a0, 0x056d0, 0x055b2,

            0x049b0, 0x0a577, 0x0a4b0, 0x0aa50, 0x1b255, 0x06d20, 0x0ada0};

// ====== 传回农历 y年的总天数

    final private static int yearDays(int y) {
        int i, sum = 348;

        for (i = 0x8000; i > 0x8; i >>= 1) {
            if ((lunarInfo[y - 1900] & i) != 0)

                sum += 1;

        }

        return (sum + leapDays(y));

    }

// ====== 传回农历 y年闰月的天数

    final private static int leapDays(int y) {
        if (leapMonth(y) != 0) {
            if ((lunarInfo[y - 1900] & 0x10000) != 0)

                return 30;

            else

                return 29;

        } else

            return 0;

    }

// ====== 传回农历 y年闰哪个月 1-12 , 没闰传回 0

    final private static int leapMonth(int y) {
        return (int) (lunarInfo[y - 1900] & 0xf);

    }

// ====== 传回农历 y年m月的总天数

    final private static int monthDays(int y, int m) {
        if ((lunarInfo[y - 1900] & (0x10000 >> m)) == 0)

            return 29;

        else

            return 30;

    }

// ====== 传回农历 y年的生肖

    final public String animalsYear() {
        final String[] Animals = new String[]{"鼠", "牛", "虎", "兔", "龙", "蛇",

                "马", "羊", "猴", "鸡", "狗", "猪"};

        return Animals[(year - 4) % 12];

    }

// ====== 传入 月日的offset 传回干支, 0=甲子

    final private static String cyclicalm(int num) {
        final String[] Gan = new String[]{"甲", "乙", "丙", "丁", "戊", "己", "庚",

                "辛", "壬", "癸"};

        final String[] Zhi = new String[]{"子", "丑", "寅", "卯", "辰", "巳", "午",

                "未", "申", "酉", "戌", "亥"};

        return (Gan[num % 10] + Zhi[num % 12]);

    }

// ====== 传入 offset 传回干支, 0=甲子

    final public String cyclical() {
        int num = year - 1900 + 36;

        return (cyclicalm(num));

    }

/** */

    /**

     * 　　* 传出y年m月d日对应的农历. 　　* yearCyl3:农历年与1864的相差数 ? 　　*

     * monCyl4:从1900年1月31日以来,闰月数 　　* dayCyl5:与1900年1月31日相差的天数,再加40 ? 　　* @param

     * cal 　　* @return

     */

    public static String qian(Calendar cal) {
        @SuppressWarnings("unused")

        int yearCyl, monCyl, dayCyl;

        int leapMonth = 0;

        Date baseDate = null;

        try {
            baseDate = chineseDateFormat.parse("1900-1-31");

        } catch (ParseException e) {
            e.printStackTrace(); // To change body of catch statement use

// Options | File Templates.

        }

// 求出和1900年1月31日相差的天数

        int offset = (int) ((cal.getTime().getTime() - baseDate.getTime()) / 86400000L);

        dayCyl = offset + 40;

        monCyl = 14;

// 用offset减去每农历年的天数

// 计算当天是农历第几天

// i最终结果是农历的年份

// offset是当年的第几天

        int iYear, daysOfYear = 0;

        for (iYear = 1900; iYear < 2050 && offset > 0; iYear++) {
            daysOfYear = yearDays(iYear);

            offset -= daysOfYear;

            monCyl += 12;

        }

        if (offset < 0) {
            offset += daysOfYear;

            iYear--;

            monCyl -= 12;

        }

// 农历年份

        year = iYear;

        yearCyl = iYear - 1864;

        leapMonth = leapMonth(iYear); // 闰哪个月,1-12

        leap = false;

// 用当年的天数offset,逐个减去每月(农历)的天数，求出当天是本月的第几天

        int iMonth, daysOfMonth = 0;

        for (iMonth = 1; iMonth < 13 && offset > 0; iMonth++) {
// 闰月

            if (leapMonth > 0 && iMonth == (leapMonth + 1) && !leap) {
                --iMonth;

                leap = true;

                daysOfMonth = leapDays(year);

            } else

                daysOfMonth = monthDays(year, iMonth);

            offset -= daysOfMonth;

// 解除闰月

            if (leap && iMonth == (leapMonth + 1))

                leap = false;

            if (!leap)

                monCyl++;

        }

// offset为0时，并且刚才计算的月份是闰月，要校正

        if (offset == 0 && leapMonth > 0 && iMonth == leapMonth + 1) {
            if (leap) {
                leap = false;

            } else {
                leap = true;

                --iMonth;

                --monCyl;

            }

        }

// offset小于0时，也要校正

        if (offset < 0) {
            offset += daysOfMonth;

            --iMonth;

            --monCyl;

        }

        month = iMonth;

        day = offset + 1;

        String nlMonthNum = chineseNumber[month - 1];
        int nlDayNum = day;
        String [] allNlmonth = {"正月","二月","三月","四月","五月","六月","七月","八月","九月","十月","冬月","腊月"};
        String [] allNlDay = {"初一","初二","初三","初四","初五","初六","初七","初八","初九","初十","十一","十二","十三","十四","十五","十六","十七","十八","十九","二十","廿一","廿二","廿三","廿四","廿五","廿六","廿七","廿八","廿九","三十"};
        int nlMonth = Integer.parseInt(nlMonthNum);
        String month = allNlmonth[nlMonth-1];
        String day = allNlDay[nlDayNum-1];
        return "农历"+month+day;
        /*return year + "-" + (leap ? "闰" : "") + chineseNumber[month - 1]
                + "-"+day;*/

    }

    public static int doing(String date) throws ParseException {
        int ans=0; //默认是0，代表非节假日；1代表是节假日

        Calendar today = Calendar.getInstance();

        today.setTime(chineseDateFormat.parse(date));

        System.out.println("北京时间：" + chineseDateFormat.format(today.getTime())

                + "　农历" + qian(today));

//today=null;

        String yang_time=chineseDateFormat.format(today.getTime());

        int yang_month=Integer.valueOf(yang_time.substring(5,7));

        int yang_day=Integer.valueOf(yang_time.substring(8));

        String yin_time=qian(today);

        int yin_month=Integer.valueOf(yin_time.substring(5,7));

        int yin_day=Integer.valueOf(yin_time.substring(8));

        if (veryfyYang(yang_month,yang_day)){
            ans=1;

        }else if (veryfyYin(yin_month,yin_day)){
            ans=1;

        }

        return ans;

    }

    public static boolean veryfyYang(int month,int day){
        boolean isHoliday=false;

//判断每个阳历月内的节日

        if (month==1){
            if (day==1){
            }

        }

        return isHoliday;

    }

    public static boolean veryfyYin(int month,int day){
        boolean isHoliday=false;

        return isHoliday;

    }

    public static void main(String[] args) throws Exception{
        Calendar today = Calendar.getInstance();

        today.setTime(chineseDateFormat.parse("2021-02-28"));

        System.out.println("北京时间：" + chineseDateFormat.format(today.getTime())

                 + qian(today));
    }
}
